Inya is a river in Kemerovo

Kemerovo Oblast

Kemerovo Oblast , also known as Kuzbass after the Kuznetsk Basin, is a federal subject of Russia , located in southwestern Siberia, where the West Siberian Plain meets the South Siberian mountains...

 and Novosibirsk Oblast

Novosibirsk Oblast

Novosibirsk Oblast is a federal subject of Russia located in southwestern Siberia. Its administrative and economic center is the city of Novosibirsk. Population: -Overview:...

s of Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

. It is a right tributary of the Ob River

Ob River

The Ob River , also Obi, is a major river in western Siberia, Russia and is the world's seventh longest river. It is the westernmost of the three great Siberian rivers that flow into the Arctic Ocean .The Gulf of Ob is the world's longest estuary.-Names:The Ob is known to the Khanty people as the...

. It is 663 km long, with a drainage basin

Drainage basin

A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

 of 17 600 km².

The Inya has its sources in a ridge in the central part of the Kuznetsk Basin

Kuznetsk Basin

The Kuznetsk Basin in southwestern Siberia, Russia, is one of the largest coal mining areas in the world, covering an area of around . It lies in the Kuznetsk Depression between Tomsk and Novokuznetsk in the basin of the Tom River...

, and flows through Kemerovo Olast in a mainly westerly direction, then enters Novosibirsk Oblast and finally joins the Ob River, just 5 km southeast of downtown Novosibirsk

Novosibirsk

Novosibirsk is the third-largest city in Russia, after Moscow and Saint Petersburg, and the largest city of Siberia, with a population of 1,473,737 . It is the administrative center of Novosibirsk Oblast as well as of the Siberian Federal District...

.

At the village of Beryosovka, some 30 km from its mouth, the rivers average discharge is 47,0 m³/s (minimum in February at 8,6 m³/s, and maximum in May at 195 m³/s). Near the mouth the river is some 60 m wide and 1.5 m deep. Its main tributaries are the Kasma, Ur and Bachat.

By the Inya lies the towns of Leninsk-Kuznetsky

Leninsk-Kuznetsky

Leninsk-Kuznetsky , known as Kolchugino until 1925, is a city in Kemerovo Oblast, Russia, located on both banks of the Inya River . Population: 128,000 ; 83,000 ; 20,000 ....

 and Toguchin

Toguchin

Toguchin is a town and the administrative center of Toguchinsky District of Novosibirsk Oblast, Russia, located on the Inya River west of Novosibirsk. Population: It was founded as a village in the 17th century...

. The riverflows through a rather densely populated area, and is crossed by several railway lines.

The river freezes over in the beginning of November, and stays frozen till the spring thaw starts in mid-April.